Paul and the ethical love: You are showing love to all the Christians throughout the province of Macedonia. 1 Thessalonians 4:10

The First Letter to the Thessalonians is probably the first written text of the New Testament, and the first letter of Paul. And this letter is not the product of mere chance; Paul had founded the Church of Thessalonica after being in the city of Philippi during his second missionary journey, and upon arriving in Athens, he had his first theological confrontation with the Epicurean and Stoic philosophers, which motivated him to begin writing his numerous letters.
It is highly unlikely that this letter was written in Corinth because he himself states that Timothy, who had been sent to Thessalonica from Athens, returned to the city with good news, and this is the fundamental reason for the letter. The apostle emphasized with great enthusiasm in his comments to the members of the Church that conversions and the subsequent growth of that Church were not only the product of his preaching, but also of the action of the Spirit with his excellencies.
In this letter, among other topics, the apostle Paul wrote briefly about the importance of the gift of holiness, and that this holiness is incremental, gradual, and progressive, like all the spiritual gifts received from the Holy Spirit. And that this holiness means for Christians to live in the love of Jesus, the ethical love, the love projected to the whole creation of God, the love that expands with its benevolence towards one's neighbor. This is why the apostle Paul wrote to them about the importance of the commandment of love, setting the members of the Thessalonian church as an example for others with these words: "You don't need anyone to write to you about the way Christians should love each other. God has taught you to love each other. In fact, you are showing love to all the Christians throughout the province of Macedonia. We encourage you as believers to excel in love even more" 1 Thessalonians 4:9-10.
And after writing about love, Paul ended his letter explaining that every Christian is a soldier of Christ who must watch over the commandment received from Jesus, because just as love and faith are armor, hope is the helmet.